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Question Subject Due Date No. of Tutorials Closed Price
What would happen if the ring, rather than the ball
A metal ball can pass through a metal ring. When the ball is heated, however, it gets stuck in the ring. What would happen if the ring, rather than the ball,were heated ? …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$5.00
When a cantilever beam is loaded at its free end,
When a cantilever beam is loaded at its free end, the maximum compressive stress shall develop at 1. bottom fibre 2. top fibre 3. neutral axis 4. centre of gravity …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$4.00
The shear force diagram for a simply supported beam carrying
The shear force diagram for a simply supported beam carrying a uniformly distributed load of w per unit length, consists of 1. two right angled triangles 2. one right angled triangle 3. two equilatera …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$5.00
When the shear force diagram is a parabolic curve between two
When the shear force diagram is a parabolic curve between two points, it indicates that there is a 1. point load at the two points 2. no loading between the two points 3. uniformly varying load betwee …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$6.00
Electrical energy can be converted to heat energy with an
Electrical energy can be converted to heat energy with an efficiency of 100%, by sending a current through a resistor and using “Joule heating”: P = I2 R. Explain how this doesn’t violate the 2nd Law, …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$5.00
Consider an alcohol and a mercury thermometer that read exactly
Consider an alcohol and a mercury thermometer that read exactly 0° C at the ice point and 100° C at the steam point. The distance between the two points is divided into 100 equal parts in both thermom …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$5.00
when a thermometer is placed in hot water, the column of mercury
Explain why, when a thermometer is placed in hot water, the column of mercury first descends slightly and then rises. …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$3.00
If you clean your room, you have lowered the disorder
If you clean your room, you have lowered the disorder in your house. How does this not violate the 2nd Law of Thermodynamics ? …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$3.00
Which room would have more air molecules
Suppose two equal-sized rooms are connected via an open doorway, but one room is warmer than the other. How is this possible? Which room would have more air molecules ? …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$4.00
The apparent expansion of a liquid in a glass bulb does
Explain why the apparent expansion of a liquid in a glass bulb does not give the true expansion of the liquid. Would the apparent expansion be greater than or less than, the true expansion? …
Engineering / General Mechanical Engineering 2016-02-22 1 Yes \$5.00